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wifi: cfg80211: fix double lock bug in reg_wdev_chan_valid()

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commit 996c3117dae4c02b38a3cb68e5c2aec9d907ec15 upstream.

The locking was changed recently so now the caller holds the wiphy_lock()
lock.  Taking the lock inside the reg_wdev_chan_valid() function will
lead to a deadlock.

Fixes: f7e60032c661 ("wifi: cfg80211: fix locking in regulatory disconnect")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/40c4114a-6cb4-4abf-b013-300b598aba65@moroto.mountain
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dan Carpenter 2023-06-09 13:48:44 +03:00 committed by Greg Kroah-Hartman
parent 1a65bac4ed
commit c0a2422955
1 changed files with 0 additions and 2 deletions
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2
net/wireless/reg.c
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@ -2398,9 +2398,7 @@ static bool reg_wdev_chan_valid(struct wiphy *wiphy, struct wireless_dev *wdev)
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_P2P_GO:
case NL80211_IFTYPE_ADHOC:
wiphy_lock(wiphy);
ret = cfg80211_reg_can_beacon_relax(wiphy, &chandef, iftype);
wiphy_unlock(wiphy);
return ret;
case NL80211_IFTYPE_STATION: